Wow Polly Robinson, that is odd. It appears you are in the To Do items area of the app, correct? I know the badge shows you have things to grade, but do you really? What I mean, is the badge incorrect? Or is the To Do list not working properly? If you go into the course and look at assignments, are there items that need to be graded?

Eek, that's not good. If you are on the latest version of the app, then I suggest you contact your local (or Canvas) support to report this issue. I can't replicate it on my side and I haven't heard of the issue in the community or at our school. Let me know if you have any luck (or not) with support and I'll follow up with my channels as well.

Were you able to find an answer to your question? I am going to go ahead and mark this question as answered because there hasn't been any more activity in a while so I assume that you have the information that you need. If you still have a question about this or if you have information that you would like to share with the community, by all means, please do come back and leave a comment. Also, if this question has been answered by one of the previous replies, please feel free to mark that answer as correct.